Characterization of cricket song patterns and the behavior observation of Teleogryllus emma (Orthoptera:Grylloidea)

Ji Chang Woo,Kim Nam-Jung,Lee Sang-Guei,Hwang-Yong Kim,Choi Hoon-Sik,Song In-Sun,Ko Jee Sun 한국응용곤충학회 2010 한국응용곤충학회 학술대회논문집 Vol.2010 No.05

We analyzed the chirp sound and behavior of Teleogryllus emma with observation system, which was consisted of computer, ccd-camera and microphone. Computational methods of wavelet transformation and Self-Organizing Maps (SOM) were utilized to characterized the chirp sound of insect species for automatic counting in this study. Wavelets were initially applied to feature extraction of the chirp sound. Wavelet coefficients were accordingly calculated based on the basis function (e.g., Morlet). The obtained coefficients were subsequently provided to count number of chirps in each song. Sound structure of insect specimens consisted with long chirp and short chirp and the patterns of song were grouped by frequency of long chirp and short chirp. The song patterns of insect specimens were divided by Self-Organizing Map (SOM) that was used number of chirp as input data. Application of computational methods to automatic detection of chirp sound was further discussed for obtaining objective assessment in behavior science.

2003년 국내 중증급성호흡기증후군 진료 현황 및 문제점 분석

이진수,김은실,정문현,백제중,정선화,안주희,최영화,이선희,고철우,김성범,김민자,박승철,기현균,송재훈,최상호,김양수,이상오,조용균,박영훈,정숙인,김연숙,이흥범,손창희,장성희,정희진,김우주 대한감염학회 2004 감염과 화학요법 Vol.36 No.3

목적 : 2002년 말 중국에서 SARS가 발생한 이후 국내에서도 2003년 10월까지 총 3명의 추정환자, 17명의 의심환자가 보고되었다. 향후 추가적인 SARS의 유행이 우려되는 상황에서, 그간의 SARS 환자 진료에 있어서의 실질적인 준비사항, 진료 현황 등에 대한 조사를 통해 문제점을 파악하여, 향후 더 나은 대비가 될 수 있도록 개선점을 제시하고자 하였다. 재료 및 방법 : SARS로 의심되는 환자를 진료 경험이 있는 병원의료진을 대상으로 2003년 10월에 설문조사를 실시하였다. 설문에는 SARS 환자 진료 시의 실질적인 조치, 진료 현황, 병실, 응급실 및 외래에서의 격리 시설과 준비사항, 보건당국의 관리와 지원에 관한 사항을 포함하였다. 결과 : 대상이 되는 22개 병원 중 17개(17/22, 77.2%) 병원이 설문에 응하였다. SARS 환자를 위한 격리실은 응급실, 외래, 일반병실 및 중환자실에서 각각 9개(9/17, 52.9%), 5개(5/17, 29.4%), 15개(15/16, 93.7%), 4개(4/16, 25%) 병원에서 음압처리가 되어있지 않은 일인실 혹은 다인실이 사용되었고, 1개(1/16, 6.3%) 병원에서만 일반병실에서 음압격리실이 운영되었다. 입원환자의 진찰 시 개인보호구의 착용은 거의 모든 의료기관에서 이루어졌다. 보건당국에서 SARS지정병원의 시설 등을 사전에 확인한 곳은 1곳(1/12, 8.3%)이였고, 14개 병원(14/15, 93.3%)에서는 보건당국에 의뢰한 검사결과를 통하 받지 못하였다. 결론 : 의료기관에서 SARS 환자용 격리실뿐만 아니라 기존의 격리실 설비 등이 미흡하였으며, 특히 중환자실 및 외래의 준비가 더욱 부족하였다. 보건당국의 의료기관에 대한 종합적인 지원이 부족하였고, 병원과의 원활한 연계가 잘 이루어지지 않았다. SARS 만이 아닌 격리를 필요로 하는 질환의 적절한 진료를 위해 향후 병원 시설의 정비와 정부차원에서의 보다 구체적이고 실질적인 대책마련이 필요하다. Background : There was an worldwide outbreak of the Severe Acute Respiratory Syndrome (SARS) originated from China in late 2002. During that period three cases of suspected SARS and 17 cases of probable SARS were reported in Korea. With the concerns about the reemergence of SARS-coV transmission, it is important to be prepared for any possibility. So, this study is aimed to analysis the past measures in managing SARS and propose the amendatory plans to improve the preparedness. Materials & Methods : Questionnaires were collected among clinicians with any experience in managing the probable or suspected SARS cases in Oct. 2003. 17 out of 22 hospitals responded to the questionnaire. The contents in the questionnaire were practical activities, personal equipments, response plans, isolation facilities in emergency centers, outpatient clinics, general wards and intensive care units, and relationship with the public health department. Results : The dedicated isolation rooms in emergency centers, outpatient clinics, general wards, and intensive care units were prepared in 9 (9/17, 52.9%), 5 (5/17, 29.4%), 15 (15/16, 93.7%), and 4 (4/16, 25.0%) hospitals, respectively. Except for one hospital that newly made negative pressure room for SARS, single or multi-bed rooms without airborne infection control were used in all the other hospitals. The personal precaution principles were kept quite well in general wards. Before the designation of SARS hospital by the public health department prior evalution to see if the hospital was suitable for managing SARS was conducted in only 1 (1/12, 8.3%) hospital. The results of laboratory diagnosis were reported back in 1 (1/15, 6.6%) hospital. Conclusions : The isolation facilities which can control airborne infection were almost deficient not only for SARS but also for other respiratory transmissible diseases. For the infection control of transmissible diseases including SARS, more investment is needed on medical facilities and comprehensive support from the public health department required.

서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)

김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2

Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.

건설 프로젝트에서 D-virus가 안전에 미치는 영향에 관한 기초적 연구

송진우,표영민,진유나,이상범,김정길 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2

Construction site has contributed to construction productivity improvement by utilizing information, simplification, and standardization concept. Also it has contributed to quality and productivity improvement by standardizing design and construction process, using them to a fair decision-making process by organizing diverse data in construction process. However, construction process has diverse variables and uncertain case due to particularity in construction. These parts have an effect on construction process. To use unorganic construction information and knowledge properly has become the factor to project success. Therefore, this study analyzes that D-virus of the uneasy factors has an effect on safety control of construction industry. That is to say, aim of the study is to suggest the solution to remove those after confirming for these factors to have certain effect in construction process through fact finding survey and retesting the factors of D-virus to refer in business management in a constructive position.

인터폴레이팅 수열과 H^∞의 실로프 경계

송태성,박종열,홍우철 釜山大學校 師範大學 1980 교사교육연구 Vol.7 No.2

Let H^∞ denote the Banach algebra of bounded analytic functions on the open unit disc and M(H^∞) denote its maximal ideal space. In this paper, we show that a sequence {z_(n)} of points in a Stolz angle formed by two rays from a point on the unit circle with |z_(n)|↑1 is an interpolating sequence if inf_n ρ(|z_(n)|, |z_(n+1)| >0, where ρ is the pseudohyperbolic metric defined on the open unit disc. The Shilov boundary ∂ of H^∞ is a proper subset of M (H^∞)-Δ(Δ is the set of all point evaluations) and ∂ can be identified with the maximal ideal space of L^∞. It is shown ∂ that is the set of all homomorphisms of H^∞ on which all interpolating Blasckke products have modulus 1.

분할배달을 고려한 발견적 배송경로 결정 방법

송성헌,강승우 弘益大學校 科學技術硏究所 1998 科學技術硏究論文集 Vol.9 No.2

This paper considers the Vehicle Routing and Schedule Problem with numerous features added in an attempt to model more realistic problems. These features include the following possibilities : a delivery to a customer is permitted to be made by more than one vehicle; customers have a time interval, or intervals, in which their delivery must be made(i. e. a time window); a vehicle type by a demand situation and available travel time per day. We proposed two heuristics: the first one uses a saving-insertion method and the second one uses a saving method. For comparsion, two of our route development methods are implemented on a specifically developed data set.

Brushless 同期發電機의 特性에 關한 硏究 : 主로 自勵型 Brushless 單相同期發電機의 應用에 對하여

宋鐵,鄭憲相,李愚宣 朝鮮大學校 1977 綜合論文集 Vol.1977 No.-

As an excitation system of the synchronous generator, an exciter which is directly connected to the main shaft, comprising some restrictions by the increasing capacity under the condition of commutation, has generally been used. In order to solve the restriction problem as well as to operate the generator without difficulty, it is desired to get rid of electrical sliding contacts such as brush and slip ring. To eliminate these electrical sliding contacts, several types of brushless generators have been developed, one of which being understood to be the self-excited brushless single-phase synchronous generator. In this paper, the results of experimental test about the characteristics are analyzed. There are not a few possibilities in the CT connection wherein the load current affects the exciting current.

Digital Signal Processor를 이용한 유도전동기의 벡터제어

송호신,노성채,우정인 동아대학교 공과대학 부설 한국자원개발연구소 1989 硏究報告 Vol.13 No.2

This paper is described a method which performs an on-line minimization of the inverter switching sequence. Input quantities of a Digital Signal Processor are the stator current vector components and angular frequency of rotor. These are used to control the current vector trajectory in the complex plane such that a minimum spatial error with respect to the reference vector is maintained. A predictive algorithm is implemented in the switching frequency of PWM inverter system. The optimization is effective under all operating conditions including transients and steady-stated. Also, this predictive control implemented a Digital Signal Processor is proposed for the application of real time control with the Induction Motor.

Coir Roll을 이용한 자연형 호안의 수리학적 특성

宋在偶,李尙度 弘益大學校 科學技術硏究所 2001 科學技術硏究論文集 Vol.12 No.-

Laboratory flume experiments to investigate the hydraulic characteristics by using close-natured element "coir roll" are carried out. This study examines the comparision if mean velocity and roughness coefficient in the case of spread the coir roll and plant the vegetation on the coir roll. The experiments was conducted using a 0.9m-wide, 0.45-deep flume with 8m-length and a radius if 2.5m in 180℃ An approximately 5cm thickness coir roll spread the flume bottom, 10cm in length and a 0.5cm in diameter vegetation planted at intervals of 9cm on the coir roll. The water was recirculated throughout the flume and return curcuit by a centrifugal pump. The results show that spread the coir roll and plant the vegetation on the coir roll are smaller each 43 percent and 46 percent than not spread the coir roll in the case of mean velocity. In the case of roughness coefficient, spread the coir roll and plant the vegetation on the coir roll are larger each 2.54 times and 2.37 times than not spread the coir roll.

점진적-LR 파서 생성기

송후봉,유재우,김상헌 崇實大學校 生産技術硏究所 1993 論文集 Vol.23 No.-

Recent efforts on syntax-directed programming systems have shown the incremental parsing technique is basic and essential part of the system. We extended a conventional LR Parsing table to accept nonterminal symbols as well as terminal symbols, and also to accept incomplete sentences as input string. We use a parse tree to store the parse sequence and to retrieve previous parse sequence. With the extended parsing table and incremental parser driver, we can generate an efficient incremental parser automatically.